It basically removes the “nofollow” attribute in all WordPress comments, which might help spread some news. On the other hand, I heard that most seach engines are not looking for this attribute anyway, but who knows?

I do-follow links now on my Aussie housewife blog. After a long time procrastinating I have seen the importance of dofollow and using the “do follow” principal to help keep the Internet better connected. http://www.reallyreally.net – Take a look at my dofollow blog and feel free to comment. Thank you, Regards Bree.

“No follow” links do not count in search engines for the ranking of the linked page. That´s the only reason. But your decission to use do follow is good, because bloogers shouldn´t do the job of searchengines.